It's finally springtime, and if you're an antiques lover like me, that means it's antique market season. What a glorious feeling to be weeding your way through Brimfield Market or Les Puces de Saint-Ouen and coming across an alluring oil painting of someone 300 years older than you, or pair of Marcel Breuer Wassily Chairs that are just worn-in enough? It's love at first sight and you have already begun mentally refinancing your mortgage to bring those babies home. But, buyers beware,...